| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cogeneration apparatus capable of keeping a proper temperature of cooling water in an internal combustion engine without resetting a flow rate of a pump in every change even when a boiler and a hot water storage tank constituting a system are changed, and shortening a warming-up time of the internal combustion engine.SOLUTION: A cogeneration apparatus 10 includes at least a power generation unit 26 composed of a power generator 20, and an internal combustion engine 22 driving the power generator and connectable to a hot water storage tank 70 through a heat exchanger 30. The cogeneration apparatus 10 further includes a first pump 60 disposed in a circulation passage 50 between the internal combustion engine and the heat exchanger, feeding the cooling water of which the temperature is raised by the internal combustion engine to the heat exchanger, and returning the cooling water cooled by the heat exchanger to the internal combustion engine, fist cooling water temperature detecting means 56 detecting a temperature T1 of the cooling water of which the temperature is raised by the internal combustion engine, and first pump discharge flow rate control means 24 controlling a discharge flow rate of the first pump according to the temperature of the cooling water detected by the first cooling water temperature detecting means.</p> |
